Pump for suction-cleaners.



J. J. SLEEPER.

PUMP FOR SUGTION CLEANERS.

APPLICATION FILED 1111.16, 1912.

Patented Apr. 111,r 1914.`

e/nSe/v Y/ glee/ver fi m J. J. SLEEPER.

PUMP FOR SUGTION CLEANERS. APPLICATION FILED 111111.16, 1912.

- Patented Apr. 14, ,1914,

2 SHEETS-SHEET 2.

uniTfED sTATus PATENT orriou.

JOSEPH J. SLEEPER, OF MOORES, PENNSYLVANIA.

PUMP FOR SUCTION-CLEANERS.

Specification of Letters Patent.

Patented Apr. 14, 1914.

Original application iled. January 9, 1912, Serial No. 670,239. Divided and this application filed April 16, 1912. Serial No. 691,235.

To alt whom t may concern Be it known that I, JOSEPH J. SLEErEr., a citizen of the United States, residing at Moores, in the county of Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Pumps for Suction-Cleaners, of which the following is a specification.

My invention relates to improvements in pumps for suction cleaners, the object of the invention being to provide a device of this character with improved suction creating means operated by the weight of the person on a pivoted platform, and comprising two diaphragm pumps of improved construct-ion, together with an improved arrangement of valves, whereby a strong suction is had.

A further object is to provide an improved suction cleaner having a central dust collector with which at both sides, diaphragm pumps have valved communication, whereby a continuous suction is had from both sides of the dust collector, insuring a continuous operation with a uniform suction.

This is a division of my application for patent on suction cleaners, filed January 9, 1912, .and given Serial No. 670,239.

lVith these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter described and pointed out in the claims. 4

In the accompanying drawings: Figure 1, is a view in longitudinal section illustrating my improvements. Fig. 2, is a view in hori zontal section on the line 2 2 of Fig. 1. Fig. 3, is a view in section on an enlarged scale on the line 3-3 o-f Fig. 1. Fig. 4, is a view in section on the line 4 4 of Fig. 3. Fig. 5, is a bottom plan view of my improved suction nozzle. Fig. 6, is a view in transverse section through the center of the nozw zle showing the pipe in elevation. Fig. 7 is a view in vertical section on an enlarged scale through one of the packing rings or collars. Fig. 8, is a view in section on the line S-S of Fig. 7. i

1, represents the dust collecting chamber, which is preferably of rectangular form as illustrated, having its ends extending above the top, and converging to a point whereby a fulcrum is formed for a platform 2.

To hold the platform in position on the fuicrum, links 3 pivotally connect brackets 4 on the bottom of the platform with the ends of the dust collecting chamber. The .said platform, near its respective ends on its under face, is provided with brackets 5, which are pivotaily connected to rods 6 of diaphragm pumps 7. The diaphragm pumps are both alike, and each comprises a casing consist-ing of two half sections both of general truncated conical form, with their larger ends secured together as clearly shown in Fig. 1. At the juncture of these sect-ions,

`Hang-es 8 are formed, and are secured by bolts 9 and nuts 10 confining the edges of leather sheets l1. These leather sheets, at their center, are provided at opposite sides with plates 12, secured by bolts 13, 4and nuts 14, and to the center of these plates 12, the rods 6 above referred to are secured, and project through openings 15 in the top of the pump casings. As these rods 6 are moved laterally, due to the action of the platform 2, the openings 15 are appreciably larger than the rods and collars 16, are secured on the rods, and normally close the openings. These collars are made with internal grooves in which packing 21 is located, and is pressed against the rod by means of set screws 17, having segments 1S at. their inner ends.

On top of each pump casing, around the opening 15, a sheet of leather or felt 19 is secured, and against these sheets 19, the collars are snugly held by means of bow springs 2O secured at one end to the top of the pump casing, and at their free ends bearing down on the collars. Each pump casing is connected to the side of the dust collector 1 by means o-f two pipe sections 22, the upper pipe section communicating with t-he pumps above the diaphragm (consisting of the leather sheet 11 and the plates 12) and the other pipe section with the pump casing below the diaphragm. These pipe sections 22 are divided by valve mounts 23. Each valve mount comprises a sheet of met-al bent into general angular form, so that when it is secured in the pipe section, it will form a V- shape partition, dividing each pipe section into an inlet chamber 24, and an out-let chamber 25, the former communicating with the dust collector, and the latter with the outside air through the medium of perforations 26 in the top of pipe section 22, said perforations normally closed by flap valves 27.

The valve mount in both members of the V-sliaped partition which it forms, is proflexible valves Q8 and 29 respectively, the

former constituting the valve controlling the passage to the pump, and the latter the passage from the pump. The valves 27 comprise strips of leather secured by metal strips 30, and having weights 31 thereon to hold them in closed position. The valves QS and 29 consist of a strip of leather, the ends of which are inclosed in metal binding strips 32. These binding strips consist of a sheet of metal folded longitudinally and clamped or otherwise secured to the ends of the leather, and said metal strips have perforations 33 in their ends through which the ends of spi'ings 34 project. These springs Y 34E are connected between their ends to rivets fixed in the partition, aiid said s priiigs exert a pull longitudinally on the leather to hold it liat and in close engagement with the partition insuring a perfect closure. The

springs, however, permit the free egress of v A flexible communicating with the casing above and -below the diaphragm, approximately V- Ishaped partitions in said pipes having per- ,forations therein, valves normally closing `1 said perforations and moved by the passage of air caused by the operation of the. dia- Ephragm, said pipes having perforations in their upper faces, and flap valves secured to air yet quickly close the valve. tube 36 connects the suction chamber l with ay tubular handle 37, and the latter is provided at its free end with a suction nozzle 3S. The nozzle 38 is of general rectangular form having` a flange 39 at its edge on its lower face forming a box-like compartment providing an extended surface area, the lower face of said nozzle tapering to the opening 4:0 which communicates with the tubulai handle. This tubular handle has a curved end as shown at Lll, and. is pivotally connected by pins 4Q to angle brackets 43 secured to the upper face of the nozzle, and between the lower end of the tubular handle and the nozzle, washers let of rubber or other elastic material are interposed. These flexible washers and the pivotal connection between the handle and the nozzle, permit the nozzle a certain amount of movement relative to the handle, so that the nozzle may cling closely to the carpet or floor, and allow the handle a certain amount of angular movement relative thereto. This renders the operation of moving the nozzle. about the floor much easier than is the case where the nozzle and handle have a rigid connection, because the nozzle must be maintained in proper position on the Hoor, and hence the angle of a rigid handle cannot change, but the movenient must be compensated for by an awkward movement of the arm of the user.

Various slight changes might be made in the general form and arrangementof parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A suction creating pump comprising a casing, a diaphragm in the casing, pipes communicating with the casing above and below the diaphragm, approximately V- shaped partitions in said pipes having perforation therein dividing said pipes into upper outlet chambers, lower inlet chambers, and intermediate chambers communicating with the casing, and valves normally closing said perforations and moved by the passage of air caused by the operation of the diaphragm, substantially as described.

2. A suction creating pump comprising a casing, a diaphragm in the casing, pipes said pipes and normally closing the lastmentioned perforations, substantially as de;

. scribed.

3. The combination with a suction chamber, of diaphragm pumps at'V opposite 'sides of said chamber, pipes connecting both of said pumps with the chamber, each pump having two pipes, one located above and the other below the diaphragms therein, V-

l shaped partitions in all of said pipes having perforations thereiiutheupper' faces of all of said pipes having perforations therein above the partitions, and Valves iioriiiallv closing said perforations and moved by the passageof air therethrough, substantially as described.

In testimony whereof I have signed my name to this specification in the presence ol' two subscribing witnesses.

JOSEPH J. SLEEPER. lVitnesses R. H. KREUKEL, Crras. E. Po'r'rs.

Copies of thin patent may be obtained for ve cents each, by addressing the Commissionerr of Patents,

Washington, D. C. 

